Senior Java Developer applicants have rated the interview process at Lab49 with 4 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 47.5% positive. This is according to Glassdoor user ratings.
Candidates applying for Senior Java Developer roles take an average of 40 days to get hired, when considering 1 user submitted interviews for this role. To compare, the hiring process at Lab49 overall takes an average of 23 days.
Common stages of the interview process at Lab49 as a Senior Java Developer according to 1 Glassdoor interviews include:
Background check: 17%
Personality test: 17%
Phone interview: 17%
Drug test: 17%
Skills test: 17%
One on one interview: 17%
Here are the most commonly searched roles for interview reports -
I applied through other source. The process took 5 days. I interviewed at Lab49 (London, England) in May 2015
Interview
1st stage: Telephone interview with 10 to 15 questions on Concurrency, Java memory model, Exceptions.
2nd Stage: CoderPad test and interview
Was asked to make class containing 2 variables (String and Collections of Integers) Immutable.
Interview questions [1]
Question 1
1) Was asked to make class containing 2 variables (String and Collections of Integers) Immutable.
I applied through a recruiter. The process took 4 weeks. I interviewed at Lab49 (Noida) in Jul 2025
Interview
I had an extremely disappointing experience with this company. After clearing four rounds of interviews and receiving a verbal confirmation of selection, I was asked to wait while the offer was being processed. I trusted their word and even let go of another offer based on their assurance.
After 15 days of silence, I was suddenly informed that my profile was “on hold” — with no clarity, accountability, or apology for the delay or the impact it had on my career decisions. This kind of treatment reflects a serious lack of professionalism, empathy, and respect for candidates’ time and careers.
A company that cannot honor its own commitment or communicate transparently during the hiring process raises major red flags about how it treats employees internally. I strongly urge future candidates to exercise caution and not make any important decisions based on verbal commitments from this organization.
Interview questions [1]
Question 1
Will you be able to work 7 days a week as in old time people were working all 7 days there were not holiday.
I applied online. The process took 5 weeks. I interviewed at Lab49 (Washington, DC)
Interview
Two Phone screens: Truly speaking I did not prepare for these interviews. They asked basic Java questions. As a Java developer, if you know your stuff, these should be very easy. Funnily enough a lot of applicants cannot tell difference between static and volatile coherently.
Three 1:1 interviews: I brushed through some JVM and memory management in Java 6 details before the interview and that was enough. If you have coded for a few years sincerely, you should be able to answer any and all of the questions. Most of the interview was more like a discussion.
A lot of applicants do not make it through phone screen or 1:1 may be because they do not have hands-on experience.
Interview questions [1]
Question 1
They ask you to design a system to solve a specific problem